Commercial kitchen fires are fast, hot, and destructive. Your hood suppression system is what stands between a grease flare-up and a business-ending loss — but only if it's been inspected and serviced on the NFPA 96 semiannual schedule.
Why Every Six Months
NFPA 96 requires inspection and testing of commercial kitchen hood suppression every six months. Not annually, not when you remember — every six months. Grease accumulates fast in hoods and ducts, fusible links drift out of spec, and pressure in the suppression system slowly changes.
What a Proper Inspection Includes
Nozzle inspection and cleaning (nozzle caps intact, no grease buildup), fusible link inspection (correct temperature rating, replacement if required), piping integrity check, agent cylinder weight and pressure verification, manual pull station testing, and a full system function test. Plus documentation — which your health inspector and AHJ both want to see.
UL 300 vs Older Systems
UL 300 is the current standard for commercial kitchen hood suppression — designed for modern high-efficiency cooking equipment using vegetable-based oils that burn hotter and longer than old animal fats. If you have an older non-UL-300 system installed before about 1994, most AHJs now require replacement.
Fusible Link Replacement
Fusible links are heat-activated triggers that release your suppression agent. Per NFPA 96 they should be replaced semiannually in most commercial kitchens. This is the single most common failure point during an inspection — and it should always be done during the semiannual visit, never skipped or deferred.
Grease Filter and Exhaust Cleaning
Grease filters should be cleaned weekly or biweekly depending on kitchen volume. Hood and exhaust system cleaning (the full ductwork) should happen quarterly for high-volume kitchens, semiannually for moderate-volume, and annually for minimum-volume.
The hood suppression system is the most critical piece of fire protection in any commercial kitchen — but it only works if it's been inspected and maintained. Fire Solutions NW handles NFPA 96 semiannual inspections. Fusible links always included. Fixed-quote pricing. Call 1-855-876-3473.